دانلود رایگان مقاله انگلیسی حفاظت از ناحیه جلویی دهان با استفاده از یک ماده پیوندی مصنوعی - هینداوی 2018

This case report highlights the use of a novel in situ hardening synthetic (alloplastic), resorbable, bone grafting material composed of beta tricalcium phosphate and calcium sulfate, for alveolar ridge preservation. A 35-year-old female patient was referred by her general dentist for extraction of the mandibular right 5rst molar and rehabilitation of the site with a dental implant. ,e nonrestorable tooth was “atraumatically” extracted without raising a 8ap, and the socket was immediately grafted with the synthetic biomaterial and covered with a hemostatic 8eece. No membrane was used, and the site was left uncovered without obtaining primary closure, in order to heal by secondary intention. After 12 weeks, the architecture of the ridge was preserved, and clinical observation revealed excellent soft tissue healing without loss of attached gingiva. At reentry for placement of the implant, a bone core biopsy was obtained, and primary implant stability was measured by 5nal seating torque and resonance frequency analysis. Histological analysis revealed pronounced bone regeneration while high levels of primary implant stability were recorded. ,e implant was successfully loaded 12 weeks after placement. Clinical and radiological follow-up examination at two years revealed stable and successful results regarding biological, functional, and esthetic parameters.

4. Conclusions

In the presented case, a novel synthetic resorbable grafting material composed of β-TCP and CS was utilized for alveolar ridge preservation, resulting in pronounced regeneration of high-quality bone capable to support implant placement after a 12-week healing period. In parallel, placing the implant 12 weeks after extraction and socket grafting, and subsequent loading of the implant at 12 weeks resulted in a functional preservation of the volume and dimensions of the site, as shown clinically and radiologically two years after loading in this case. ,e mechanical stability of self-hardening synthetic biomaterials may also enable clinicians to utilize minimally invasive 8apless procedures without primary wound closure for socket grafting that reduce the patient’s morbidity, while preserving the attached keratinized gingiva and allowing for further production of newly formed keratinized soft tissue. Additional studies, including larger samples, comparison of di?erent materials, quantitative measurements of the ridge dimensional changes, and inclusion of di?erent sites, like the anterior region, that might show more pronounced changes, are needed in order to con5rm and supplement the present 5ndings.